Home / 31,557,731.60-47,308,949.40-21,427,504.40

Finding the Fourth Proportional to 31,557,731.60, 47,308,949.40 and 21,427,504.40

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Solution

The fourth proportional to 31,557,731.60, 47,308,949.40 and 21,427,504.40 is: 32,122,483.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,557,731.60 : 47,308,949.40 = 21,427,504.40 : x
  2. Step 2: Convert to fraction form
    31,557,731.60/47,308,949.40 = 21,427,504.40/x
  3. Step 3: Cross multiply
    31,557,731.60x = 47,308,949.40 × 21,427,504.40
  4. Step 4: Simplify right side
    31,557,731.60x = 1,013,712,721,427,877.25
  5. Step 5: Solve for x
    x = 1,013,712,721,427,877.25/31,557,731.60
  6. Step 6: Final answer
    x = 32,122,483.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.